20565799600

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{25117}}^1$

素因数の和:25247

約数の個数: 120

約数和(自身を含む): 52138939680

約数和(自身を除く): 31573140080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 89, 92, 100, 115, 178, 184, 200, 230, 356, 368, 400, 445, 460, 575, 712, 890, 920, 1150, 1424, 1780, 1840, 2047, 2225, 2300, 3560, 4094, 4450, 4600, 7120, 8188, 8900, 9200, 10235, 16376, 17800, 20470, 25117, 32752, 35600, 40940, 50234, 51175, 81880, 100468, 102350, 125585, 163760, 200936, 204700, 251170, 401872, 409400, 502340, 577691, 627925, 818800, 1004680, 1155382, 1255850, 2009360, 2235413, 2310764, 2511700, 2888455, 4470826, 4621528, 5023400, 5776910, 8941652, 9243056, 10046800, 11177065, 11553820, 14442275, 17883304, 22354130, 23107640, 28884550, 35766608, 44708260, 46215280, 51414499, 55885325, 57769100, 89416520, 102828998, 111770650, 115538200, 178833040, 205657996, 223541300, 231076400, 257072495, 411315992, 447082600, 514144990, 822631984, 894165200, 1028289980, 1285362475, 2056579960, 2570724950, 4113159920, 5141449900, 10282899800, 20565799600]

約数ペア:

[(1, 20565799600), (2, 10282899800), (4, 5141449900), (5, 4113159920), (8, 2570724950), (10, 2056579960), (16, 1285362475), (20, 1028289980), (23, 894165200), (25, 822631984), (40, 514144990), (46, 447082600), (50, 411315992), (80, 257072495), (89, 231076400), (92, 223541300), (100, 205657996), (115, 178833040), (178, 115538200), (184, 111770650), (200, 102828998), (230, 89416520), (356, 57769100), (368, 55885325), (400, 51414499), (445, 46215280), (460, 44708260), (575, 35766608), (712, 28884550), (890, 23107640), (920, 22354130), (1150, 17883304), (1424, 14442275), (1780, 11553820), (1840, 11177065), (2047, 10046800), (2225, 9243056), (2300, 8941652), (3560, 5776910), (4094, 5023400), (4450, 4621528), (4600, 4470826), (7120, 2888455), (8188, 2511700), (8900, 2310764), (9200, 2235413), (10235, 2009360), (16376, 1255850), (17800, 1155382), (20470, 1004680), (25117, 818800), (32752, 627925), (35600, 577691), (40940, 502340), (50234, 409400), (51175, 401872), (81880, 251170), (100468, 204700), (102350, 200936), (125585, 163760)]